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(Remodel.) A j ,f3 sheets-sneec1. v DENNIS aus. B.- C0RAM.- i

` PRES-S' PQR. PRESSINGIAND s'lngMPING.

NA PETERS Phmulhagmphar. wanna. IILCA I v I 3 Sheets-Shasta J-DENNI'S'v G. B. (MRM/L,

(No Model.)

PRESS POR PRBSSING AND` Summa. No. 294.311.

" lmentdFeb., 26', 1884.

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(No Model.)

. 3 Sheets-#Sheat 3. J. DENNIS au Q. BCORAM. n `PRESS FORA PRBSSING AND STAMPING. N. 294,311.v

Patented Peb. 26, 1884.

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UNITED STATES APATENT OFFICE.'

JOHN EENNISAND GEOEGE E. VCOEAM, OE LOWELL, MASSAoHUsETTsAsSiGN- OES, EY EIEEOT AND MESNE ASSIGNMENTS, rro JOSEPH A. OOEAM AND NATHAN OEOSBY, OE SAME PLAGE.

PREISS FOR PRESSING AND STAMPING.

SPECIFICATION lforming-part of Letters Patent No. 294,311, dated February 26, 1884.

V Application filed June 8, 1G83. (No model.) I'

To @ZZ whom t may concern,.-

Be it known that we, JOHN DENNIS, a citizen of the United States, and GEORGE B. CORAM, a Subject of Victoria, Queen of the United Kingdom of Great Britain and Ireland, both residing in Lowell, in the countyfof Middlesex and Commonwealth of Massachusetts, have invented a certain new and useful Improvement in Presses for Pressing and Stampio ing, of which the following is a speciication.

The press described herein is especially useful for pressingand stamping soap and materi als of similar consistency, but is also adapted, if made. of the proper strength, for making bricks, andthe means described for adjusting the lower die and for raising the same after the impression is made are applicable .to presses for embossing paper and similar.materials.l

Our invention relates, principally, to means 2O for removing the work from the dies after stamping or pressing,to,means for adjusting the lower die, and to means for adapting the upper surface of the tableto receive die-boxes of different sizes.

In the accompanying drawings, Figure 1 is an isometric view of a press containing our improvements; Fig. 2, a verticalcentral longitudinal section ofthe same; Figs. 3, 4, 5, -rear elevations ofthe cams, which respectively op- 3o erate the upper die, the nippers, and the lower die; Fig. 6, an oblique view of the die-box.; Fig. 7, a horizontal Section of the press just above the table and nippers; Figs. 8 and 9, plans of the nippers anda cake of stamped -3 5 material, in Fig. 8 the cake being released from the nippers, and in Fig. 9 the cake being heldand carried forward by the nippers; Fig. 10, arear elevation of the rock-shaft, arm, and links which operatethe lower die,and saiddie, 4o also a cross-section of the table; Fig. 11,aplan ofthe under side of the table; Fig. 12, a vertical longitudinal section ofthe lower die,'means for adjusting the height of the Same, and links; Fig. 13, a plan of the nippers provided with 45 adjustable jaws, parts of the nippers and jaws being in section; Fig. 14, an oblique view of one of said adjustable jaws; Fig. 15,an oblique view of one of the dead-points and meansfor adjustably securing the Same to the frame, a

5o part of which frame is shown; Fig. 16, a plan of the parts shown in Fig. 15.

A denotes the frame of thepress; B,the main shaft; C, the driving-pulley; D, the-gear onthe main shaft,'which gear takes into the gear D' on the shaft B', all ofthe above-denoted parts being of the construction and operation shown inLetters Patent of the United States No. 237,537, granted February 8, 1881, on the application of Charles L. Ingalls.

Secured to the shaft B' are three cams, E E' E2, Figs. 3, 4, and, so set thatthe points e in said cams will always be in the same direction from the axis of the shaft B'. The'cam E operates the upperdie, I, Said die I being secured by its Stem H' to thecroSs-head F, and adjusted in height, and the cross-head being guided in a vertical path by the guide-rods H, as shown in said patent. To the cross-head is Vrigidly secured the rod G, the upper end of said rod being provided with a slot, d, through which the shaft B' passes and guides said rod G vertically. A stud, h, which may be provided with a whirl, t', enters the groove of the cam E from the rod G, and the revolution of the cam E causes saidV rod G to 'have a reciprocating motion. Y p

The lower die, I', is raised bythe cam E2, rod G2, and connecting parts. Therod G2 has aslot, d2, stud h2, and whirl 2, which correspond in form and use-to the slot 0l, stud h, and whirl i, respectively, in and on the rod G. The rod GZ is jointed at g', to allow its lower end to accommodate itself tothe motion of the arm P', secured to the rock-shaft P, and is adjusted in length by a screw adjustment (at g3) in the usual manner, according to the point of its attachment to said arm P'. The arm P is slotted endwise, and the lowerendof the rod G2 is attached thereto v'by a screw-pin, which projects through said rod G2, through a washer, and through said slot, and is held in place by a nut, the pin having a shoulder,

which presses the washer away from the rod 4of the latter link being pivoted to the stem .T g of the lower die, I', so that the revolution of theshaft B' causes the lower die to rise and fall. rIhe height of the lower die may be adjusted by making the stem J in two parts, j j', Fig. 12, and rigidly inserting a stud, j, in the IOO lower part, j', the upper end of said stud being provided with a screw,which enters a threaded hole in the upper part, j, of said stem J, so that after removing the die-box K from the table the lower die may be turned around, and so raised or lowered. The die I is prevented from turning by the die-box or mold K (which it iits) when said box is in place. The mold or die-box requires to be changed for cakes of different lengths and widths-the thickness of the cakes being regulated by the adjustment of the upper and lower dies-hence the bed. piece L of the table is made with an opening large enough to receive the largest die-box intended to be used with the press, and these boxes areeach provided with ears K of sufficient length to allow of theirbeinghcld against the bed-piece in the usual manner by screws or bolts K2, passing up into said bed-piece through holes in said ears. On top of the -bed-piece are placed four pieces, L L2 L3 L4, thick enough to rise to the top of the die-box when the latter is in place, the bed-piece L heilig provided with slots, through which capscrews reach up into said four pieces. By loosening the cap-screws the four top pieces L L'l L L4 may be moved toward or away from the center of the table, to tit the top of the die-box. The screws, being tightened, hold t-he top pieces in place. The front piece, L3, is inclined downward, on its upper surface, from the top of the diebox to the front edge of the table, and the side pieces, L L, are beveled off on their front inner corners, to aid in the delivery of the stamped cakes or bars from the press.

Guides L5 are used to direct the unstamped material to the diebox. These guides are secured by screws L6 to the top of the piece L, as shown. After the material is stamped by the pressure of the dies I I' in the die-box or mold K, both dies rise by the revolution of the cams E E2, the upper die starting a little in advance of the other, and the upper surface of the lower die, I', rising about one-quarter of an inch above the top of the die-box. The parts or points e of the three cams E l 2 are then directly over the axis of the shaft B', and the dies are separated by a distance a little greater than the thickness of the stamped bar or cake X, said bar adhering to one of the dies-generally the lower die. The dies now stop, (owing to the shape of the cams, because the shaft B has a continuous rotary moti0n,) and the nippers are quickly brought forward, as described below, and grasp the cake X, whereupon the nippers rest and the dies separate still farther, the lower die falling to its lowest position and the upper die rising to its highest position.

The rod G is provided with a slot, d, stud 7L', and whirl i', corresponding to similar parts in and on the rods G G2. There is a vibrating lever, Q, the pivoted end of which is divided, as shown, and pivoted at Q to brackets Q2, secured to the bottom of the frame A. From the lever Q a slotted arm, Q3, projects backward,

to the slotted arm P and lfor a similar pur- 7o pose-that is, to vary the length of the stroke of the lever Q. The rod G is also provided with a joint, g, (to allow its lower end to move back and forth with the arm Q2) and with a screw adjustment at g2 to take up the slack. The upper end of the lever Q is provided with three arms, Q4 Q5 Q5. To the rear end of the arms Qi Qi (which project back, as shown) are pivoted the rear ends of --the nippers R at R4 R, and a rod, T, secured at its middle point to the central forward-projecting arm Q4, projects through said nippers, Spiral springs S S, placed around the rod T, between the nippers and the arm Q, crowd said nippers outward against the nuts T T', screwed onto the ends of said rod T. The nippers are provided with the projections R R', which strike the dead-points R2 R2 as the nippers are vibrated by the lifting of the rod G. The corners of the projections R R and of the dead-points are chamfcred or beveled oif, so that, the beveled parts striking each other, (by the forward movement of the nippers,) the vnippers are forced ltoward each other, and grasp and hold the stamped cake X, and then rest, (as the central parts of said projections R' R and dead-points just lap onto each other,) while the dies separate from the cake, as above described. As soon as the dies have so separated from the cake, the nippers again move forward, still holding the cake, until the central parts of the projections and dead-poliits pass each other, when the nippers are opened by the outwardpressure of the springs, thereby releasing the cake, which drops on the incline L3 and slides off the front of the table into any suitable receptacle.

In order that the nippers may not dcfaee the cake X, the faces of the jaws of the nippers are covered with rubber or other suitable elastic pads, R3 R, secured by screws R""R5 to said jaws, and in order that the jaws may be 1ad-.

justed to cakes of different lengths, lthe jaws are made in separate pieces I G RG. (See Figs. 13 and 14.)

In Figs. 14 and 15 the jaws are angle-irons, provided with dovet-ails, which enter corresponding grooves in the front inwardly-projecting parts, R7 R7, of the nippers. Studnuts S S areinserted in the transverse parts of the jaws, and project through slots in the transverse parts R7 R7 of the nippers, and screws V V, passing through the nippers, engage with the nuts S S', and cause the jaws to slide on 'the nippers transversely, these screws V V having manysided heads, which can be turnedv by a wrench. The screws V V are prevented from endwise motion lby pins or screws WV W, which, being inserted in the tops of the nippers, enter annular4 grooves cut in said screws V V. The jaws are held in place by turning up nuts Y Y on the studs or shanks of the stud-nuts S S. The dead-points are dovetailed into angle-irons, Figs. 15 and 16, in or- IOO IIO

dcr that they may be readily removed when worn out, and in order to compensate for the wear on said dead-.points the angle-irons are slotted in one direction, and the brackets are slotted at right angles to the' slots in said irons, the brackets being secured to the frame A of the press, as shown. This allows the deadpoints to be moved nearer together as they wear, and also allows them to bel-moved backward lor forward, to make the nippers close more or less quickly. It will bev seen that the lower die has a positive motion in each direction. The lower die has heretofore beenlifted by a hook which let go of the die at the proper time, allowing the die to fall of its own weight. This arrangement worked well when the press was run at a slow rate of speed; but when the machine was run too fast the lower die would sometimes jump out of the die-box and catch on the top of the same, and be broken by the descent of the upper die.. The methods heretofore used of knocking off the stamped bars by a sudden blow, as shown in the patent above referred to, were open to the objection of marring one side of the bar, and of scraping off the characters impressed upon the upper and lower faces of said bar by the dies, which are in soap-presses commonly engraved with ornamental or advertising figures or devices.

We claim as our inventionv l. A press provided with a positive automatic picking-off device, as and for the purpose speciied. 2. The combination of the die-box K, the lower die, I, and means for giving to said die a positive motion-in both directions, as and for the purpose specified.

3. The combination of the dies, means for raising the same, means for causing the same to rest, means for causing the same to draw away from each other and the nippers, and

.for the purpose specified.

means for causing the same to advance and close,

as and for the purpose specied.

4. The combination ofthe dies, means for raising the same, means for causing the same to rest, meansfor causing the same to draw away from eachother, the nippers, and means for causing the same to advance and close, and

means for causing said nippers to rest untill the dies have separated from the stamped bar, as and for the purpose specified.

5. The combination of the lever Q, means for reciprocating the same, the nippers R R, hinged to said lever, and provided with the projections R R, and the dead-points R2 R2, as and'for the purpose specified.

6. The combination of the lever Q, means for reciprocating the same, the nippers R R,

hinged tosaid lever, and provided with the projections R R', the dead-points R2 RZ, and

means for opening said nippers, as and for the v purpose specified.

7. The combination of the lever Q, provided with' the arm Q3, the cam E', means for rotating the same, and the rod GQ provided with the stud h, and. adj ustably connected to said arm Q3, as and for the purpose specified.

8. The combination of the die-box K, the table provided with an opening to receive said die-box, and means for adjusting the upper surface of said table to it said die-box, lasand 

